Fehmarnbelt Tunnel Set to Revolutionize Travel Between Denmark and Germany

The world's longest immersed road and rail tunnel aims to cut travel times and boost green transport by 2029.

The 18-kilometer tunnel will reduce Copenhagen-Hamburg train travel from 4.5 hours to 2.5 hours.
Construction began in 2020, with the first tunnel element inaugurated in June 2024 by Denmark's King Frederik X.
The project is expected to cost over €7 billion and is funded by Denmark, with EU subsidies.
Environmental groups express concerns about the tunnel's impact on marine life and its economic viability.
The tunnel will create a strategic corridor for freight and passenger transport between Scandinavia and Central Europe.